Liquid stopping clamp and infusion pump assembly
By designing the antipyretic clip with automatic reset function, the difficulty of the existing solution clip operation is large and the problem of biased bias, and the safer and more reliable infusion and stop liquid operation is achieved.
Patent Information
- Application Number
- CN202420840627.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing liquid stopper clamp has high requirements for the user's hands-on ability when locking, and it is easy to cause clamping due to deviation of the position of the force, resulting in the infusion tube not being closed tightly, and may cause blood reflux and other hazards.
Designed a stopplane that includes clamps and reset components. The sandwich body consists of the first clamp arm and the second clamp arm. The holding arm is automatically reset.
The holding arm is in the circulation position through the external force to achieve the infusion; when the solution is needed, the external force is lifted, the holding arm is automatically reset to the stop liquid position, and the solution is achieved. The design reduces the difficulty of user operation and improves the safety and reliability of the solution.
Smart Images
Figure CN222399757U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical products, in particular to a liquid-stopping clamp and an infusion pump assembly. Background Art
[0002] A stop-fluid clamp is a medical device that is mainly used to temporarily interrupt the flow of fluid during infusion. Its working principle is to clamp the infusion line so that the fluid cannot pass through, thereby achieving the purpose of stopping the fluid.
[0003] The structures of the liquid-stop clamps used clinically are not much different. Most of the clamp bodies include a movable section, a connecting section and a fixed section connected in sequence. A matching locking mechanism is provided at the joint of the movable section and the fixed section. The clamp body is closed by locking the movable section and the fixed section, and is opened by unlocking the movable section and the fixed section. However, in actual applications, the following problems exist: when locking the movable section and the fixed section, the user's hands-on ability is required to a certain extent. If the position of the force deviates, the liquid-stop clamp will be misaligned. If the infusion tube is not closed tightly, blood reflux will still occur, causing harm. Utility Model Content
[0004] The main purpose of the utility model is to provide a liquid-stopping clamp and an infusion pump assembly, aiming to make the liquid-stopping operation more convenient, and the liquid-stopping clamp is easier to keep in the liquid-stopping state, which is safer.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a liquid-stopping clamp, comprising:
[0006] A clamp body, the clamp body comprising a first clamping arm and a second clamping arm arranged opposite to each other, one end of the first clamping arm and the second clamping arm being movably connected so that the other ends of the first clamping arm and the second clamping arm can approach and move away from each other, so as to have a first position where the distance is close and a second position where the distance is far, the first clamping arm comprising a first clamping portion, the second clamping arm comprising a second clamping portion, the first clamping portion and the second clamping portion being used to clamp the infusion tube at the first position and keep the infusion tube blocked, and to clamp the infusion tube at the second position and keep the infusion tube flowing; and,
[0007] A reset member is connected to the clamp body and is used to provide a clamping force for restoring the first clamping arm and the second clamping arm from the second position to the first position.
[0008] In one embodiment, a first notch groove and a second notch groove are correspondingly provided on opposite sides of the first clamping arm and the second clamping arm, and a first convex portion and a second convex portion are correspondingly provided on inner walls of the first notch groove and the second notch groove, and the first convex portion and the second convex portion correspondingly form the first clamping portion and the second clamping portion.
[0009] In one embodiment, the inner walls of the first notch groove and the second notch groove are also correspondingly provided with a third protrusion and a fourth protrusion, the third protrusion is connected to the first protrusion and the protrusion height of the third protrusion is greater than the protrusion height of the first protrusion, the fourth protrusion is connected to the second protrusion and the protrusion height of the fourth protrusion is less than the protrusion height of the second protrusion, and in the direction away from the connecting end of the first clamping arm and the second clamping arm, the third protrusion and the fourth protrusion are used to prevent the infusion tube from falling out from between the first protrusion and the second protrusion.
[0010] In one embodiment, a third notch groove and a fourth notch groove are correspondingly provided on one side opposite to the first clamping arm and the second clamping arm, and the third notch groove and the fourth notch groove are used to define a limiting hole for the infusion tube to pass through.
[0011] In one embodiment, the reset member includes an elastic member, and the elastic member includes a main body, and two elastic sections extending from two ends of the main body to free ends of the first clamping arm and the second clamping arm respectively;
[0012] A mounting groove is recessed on one side of the clamp body and is located in the extension direction of the infusion tube. The elastic member is installed in the mounting groove. A limiting portion is convexly provided on the side wall of the mounting groove. The limiting portion is used to prevent the elastic member from escaping from the mounting groove in the extension direction of the infusion tube.
[0013] The utility model also provides an infusion pump assembly, comprising:
[0014] A liquid stop clamp as described in any one of the above; and
[0015] An infusion pump comprises a base, wherein the base has a limit groove and a slot, wherein the limit groove is used to fix the infusion tube, and the slot is used to accommodate the liquid stop clamp, wherein the limit groove intersects with the slot, so that when the infusion tube is fixed to the limit groove, it can be clamped by the first clamping arm and the second clamping arm of the liquid stop clamp accommodated in the slot.
[0016] In one embodiment, the infusion pump further comprises a cover body rotatably connected to the base, wherein the cover body has a covering position covering the base and an open position deviating from the base;
[0017] A protrusion is provided on the side of the cover body facing the base. When the cover body is in the covering position, the protrusion is inserted between the first clamping arm and the second clamping arm so that the first clamping arm and the second clamping arm are in the second position. When the cover body is in the open position, the protrusion is disengaged from the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are reset to the first position under the action of the reset member.
[0018] In one embodiment, the free ends of the first clamping arm and the second clamping arm have a guiding slope on one side of the extending direction thereof, and the guiding slope is used to guide the protrusion to be inserted between the first clamping arm and the second clamping arm.
[0019] In one embodiment, in the groove depth direction of the slot, the liquid stop clamp has an installation position where the connection ends of the first clamping arm and the second clamping arm abut against the groove bottom of the slot and a deviation position that deviates from the installation position;
[0020] The free ends of the first clamping arm and the second clamping arm extend an extension portion in a direction away from each other, so that when the liquid-stop clamp is in a deviated position and the cover body rotates from the open position toward the cover-set position, the protrusion abuts against the extension portion of the first clamping arm or the second clamping arm to push the liquid-stop clamp to move from the deviated position to the installation position.
[0021] In one embodiment, the infusion pump further comprises a position sensor, which is arranged corresponding to the bottom of the slot and is used to detect the position of the infusion tube; and / or,
[0022] The infusion pump further comprises a bubble sensor, which is arranged corresponding to the limiting groove and is used for detecting bubbles in the infusion tube.
[0023] The technical solution of the utility model is that the liquid-stop clamp includes a clamp body and a reset member, the clamp body includes a first clamping arm and a second clamping arm that are relatively arranged, one end of the first clamping arm and the second clamping arm are movably connected so that the other ends of the first clamping arm and the second clamping arm can approach and move away from each other, so as to have a first position where the distance is closer and a second position where the distance is farther, the first clamping arm includes a first clamping portion, and the second clamping arm includes a second clamping portion, the first clamping portion and the second clamping portion are used to clamp the infusion tube at the first position and keep the infusion tube blocked, and to clamp the infusion tube at the second position and keep the infusion tube flowing; the reset member is connected to the clamp body to provide The clamping force is provided to reset the first clamping arm and the second clamping arm from the second position to the first position. In this way, the first clamping arm and the second clamping arm are located in the second position by an external force, so that the infusion tube can remain flowing and infusion can be achieved. When it is necessary to stop the liquid, the external force is released without any other operation. The first clamping arm and the second clamping arm are automatically reset from the second position to the first position under the action of the reset member to stop the liquid. That is, through the setting of the reset member, the normal state of the liquid-stopping clamp is the liquid-stopping state, and it will be in the open state only when an external force is applied. The user's hands-on ability is not required, the liquid-stopping operation is more convenient, and the liquid-stopping clamp is easier to keep in the liquid-stopping state, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0025] Figure 1 A front view schematic diagram of the liquid stop clamp provided by the utility model;
[0026] Figure 2 for Figure 1 A first stereoscopic schematic diagram of the liquid stop clamp in FIG.
[0027] Figure 3 for Figure 1 A second stereoscopic schematic diagram of the liquid stop clamp;
[0028] Figure 4 for Figure 1 A rear view schematic diagram of the liquid stop clamp in FIG.
[0029] Figure 5 A first stereoscopic schematic diagram of the infusion pump assembly provided by the utility model;
[0030] Figure 6 for Figure 5 A second stereoscopic schematic diagram of the infusion pump assembly;
[0031] Figure 7 for Figure 5 Schematic diagram of the partial structure of the infusion pump assembly.
[0032] Description of Figure Numbers:
[0033] 1000, infusion pump assembly; 100, liquid stop clamp; 1, clamp body; 11, first clamping arm; 111, first clamping portion; 112, first convex portion; 113, third convex portion; 114, third notch; 12, second clamping arm; 121, second clamping portion; 122, second convex portion; 123, fourth convex portion; 124, fourth notch; 13, limiting portion; 14, guiding slope; 15, extension portion; 2, reset member; 21, elastic member; 200, infusion pump; 210, base; 220, cover body; 221, protrusion; 222, push tube structure; 230, position sensor; 240, bubble sensor; 300, infusion tube.
[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0038] A stop-fluid clamp is a medical device that is mainly used to temporarily interrupt the flow of fluid during infusion. Its working principle is to clamp the infusion line so that the fluid cannot pass through, thereby achieving the purpose of stopping the fluid.
[0039] The structures of the liquid-stop clamps used clinically are not much different. Most of the clamp bodies include a movable section, a connecting section and a fixed section connected in sequence. A matching locking mechanism is provided at the joint of the movable section and the fixed section. The clamp body is closed by locking the movable section and the fixed section, and is opened by unlocking the movable section and the fixed section. However, in actual applications, the following problems exist: when locking the movable section and the fixed section, the user's hands-on ability is required to a certain extent. If the position of the force deviates, the liquid-stop clamp will be misaligned. If the infusion tube is not closed tightly, blood reflux will still occur, causing harm.
[0040] In view of this, the utility model provides a liquid-stopping clamp and an infusion pump assembly.
[0041] Please refer to the attached Figures 1 to 4 In one embodiment of the utility model, the liquid-stop clamp 100 includes a clamp body 1 and a reset member 2, the clamp body 1 includes a first clamping arm 11 and a second clamping arm 12 that are relatively arranged, one end of the first clamping arm 11 and the second clamping arm 12 are movably connected so that the other ends of the first clamping arm 11 and the second clamping arm 12 can approach and move away from each other, so as to have a first position with a closer distance and a second position with a farther distance, the first clamping arm 11 includes a first clamping portion 111, and the second clamping arm 12 includes a second clamping portion 121, the first clamping portion 111 and the second clamping portion 121 are used to clamp the infusion tube 300 at the first position and keep the infusion tube 300 blocked, and to clamp the infusion tube 300 at the second position and keep the infusion tube 300 flowing; the reset member 2 is connected to the clamp body 1 to provide a clamping force that enables the first clamping arm 11 and the second clamping arm 12 to reset from the second position to the first position.
[0042] The technical solution of the present utility model is to make the first clamping arm 11 and the second clamping arm 12 be located in the second position through the action of external force, so that the infusion tube 300 can be kept flowing to achieve infusion. When it is necessary to stop the liquid, the external force is released without other operations. Under the action of the reset member 2, the first clamping arm 11 and the second clamping arm 12 are automatically reset from the second position to the first position to stop the liquid. That is, through the setting of the reset member 2, the normal state of the liquid-stopping clamp 100 is the liquid-stopping state, and it will be in the open state only when an external force is applied. The user's hands-on ability is not required, the liquid-stopping operation is more convenient, and the liquid-stopping clamp 100 is easier to maintain in the liquid-stopping state, which is safer.
[0043] In an embodiment of the present utility model, a first notch groove (not shown in the figure, refer to the position of the first convex portion 112 for understanding) and a second notch groove (not shown in the figure, refer to the position of the second convex portion 122 for understanding) are correspondingly provided on the opposite side of the first clamping arm 11 and the second clamping arm 12, and the inner walls of the first notch groove and the second notch groove are correspondingly provided with the first convex portion 112 and the second convex portion 122, and the first convex portion 112 and the second convex portion 122 correspondingly form the first clamping portion 111 and the second clamping portion 121. It can be understood that a first notch groove is provided on one side of the first clamping arm 11, and the first convex portion 112 is formed on the inner wall of the first notch groove, so that in the extending direction of the infusion tube 300, the size of the first convex portion 112 is small, and the first clamping arm 11 The size of other parts of the second clamping arm 12 is larger. While ensuring the overall strength of the first clamping arm 11, the first clamping portion 111 formed by the first convex portion 112 can better act on the infusion tube 300. Similarly, a second notch groove is provided on one side of the second clamping arm 12, and the second convex portion 122 is formed on the inner wall of the second notch groove, so that in the extension direction of the infusion tube 300, the size of the second convex portion 122 is smaller, and the size of other parts of the second clamping arm 12 is larger. While ensuring the overall strength of the second clamping arm 12, the second clamping portion 121 formed by the second convex portion 122 can better act on the infusion tube 300. In this way, the overall strength of the clamp body 1 can be guaranteed, the clamping effect on the infusion tube 300 can be guaranteed, and the structure is safer and more reliable.
[0044] In an embodiment of the utility model, the inner walls of the first notch groove and the second notch groove are also correspondingly provided with a third protrusion 113 and a fourth protrusion 123, the third protrusion 113 is connected to the first protrusion 112 and the protrusion height of the third protrusion 113 is greater than the protrusion height of the first protrusion 112, the fourth protrusion 123 is connected to the second protrusion 122 and the protrusion height of the fourth protrusion 123 is less than the protrusion height of the second protrusion 122, in the direction away from the connecting end of the first clamping arm 11 and the second clamping arm 12, the third protrusion 113 and the fourth protrusion 123 are used to prevent the infusion tube 300 from falling out from between the first protrusion 112 and the second protrusion 122, so that the infusion tube 300 is prevented from falling out from between the first clamping part 111 and the second clamping part 121, and the infusion tube 300 is maintained between the first clamping part 111 and the second clamping part 121, and the structure is safer and more reliable.
[0045] In an embodiment of the utility model, a third notch groove 114 and a fourth notch groove 124 are correspondingly provided on the opposite side of the first clamping arm 11 and the second clamping arm 12. The third notch groove 114 and the fourth notch groove 124 are used to define a limiting hole for the infusion tube 300 to pass through. In this way, before the infusion operation, the infusion tube 300 is passed through the limiting hole, and the liquid stop clamp 100 is maintained at a specific position of the infusion tube 300. The liquid stop clamp 100 and the infusion tube 300 are not separated, and the liquid stop clamp 100 is properly stored and is in a standby state, which is convenient for subsequent use and improves the infusion efficiency.
[0046] The present application does not limit the specific structure of the reset member 2. For example, the reset member 2 can be a magnetic reset, and the reset is achieved by magnetic attraction or magnetic repulsion. In an embodiment of the utility model, the reset member 2 includes an elastic member 21, and the elastic member 21 includes a main body, and two elastic sections extending from the two ends of the main body to the free ends of the first clamping arm 11 and the second clamping arm 12 respectively; a mounting groove is recessed on one side of the clamp body 1 for being located in the extension direction of the infusion tube 300, and the elastic member 21 is installed in the mounting groove, and a limiting portion 13 is convexly provided on the side wall of the mounting groove, and the limiting portion 13 is used to prevent the elastic member 21 from falling out of the mounting groove in the extension direction of the infusion tube 300. The elastic member 21 has good durability, low cost, and is easy to install. By installing the elastic member 21 in the mounting groove, the limiting portion 13 is provided on the mounting groove to prevent it from falling out, so that the elastic member 21 is properly fixed, and the structure is safe and reliable.
[0047] In an embodiment of the utility model, the clamp body 1 is integrally formed, the connecting ends of the first clamping arm 11 and the second clamping arm 12 can be flexibly deformed to achieve a movable connection, and the reset member 2 includes a U-shaped spring, so that the structure is simple and the cost is low.
[0048] See attached Figures 5 to 7 The utility model also proposes an infusion pump assembly 1000, including a liquid stop clamp 100 and an infusion pump 200. The specific structure of the liquid stop clamp 100 refers to the above embodiment. The infusion pump 200 includes a base 210, and the base 210 has a limiting groove and a slot. The limiting groove is used to fix the infusion tube 300, and the slot is used to accommodate the liquid stop clamp 100. The limiting groove intersects with the slot, so that when the infusion tube 300 is fixed to the limiting groove, it can be clamped by the first clamping arm 11 and the second clamping arm 12 of the liquid stop clamp 100 accommodated in the slot. Since the infusion pump assembly 1000 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0049] In an embodiment of the utility model, the infusion pump 200 further includes a cover body 220 rotatably connected to the base 210, the cover body 220 having a covering position covered on the base 210 and an open position deviated from the base 210; the cover body 220 is provided with a protrusion 221 on one side facing the base 210, when the cover body 220 is in the covering position, the protrusion 221 is inserted between the first clamping arm 11 and the second clamping arm 12, so that the first clamping arm 11 and the second clamping arm 12 are in the second position, when the cover body 220 is in the open position, the protrusion 221 is disengaged from the first clamping arm 11 and the second clamping arm 12, the first clamping arm 11 and the second clamping arm 12 are in the complex The positioning member 2 is reset to the first position under the action of the positioning member 2. In this way, when the cover body 220 is closed, the protrusion 221 props open the first clamping arm 11 and the second clamping arm 12 to make them located in the second position, and the infusion tube 300 circulates to achieve infusion. After the infusion is completed, the cover body 220 is opened, and the protrusion 221 is released from between the first clamping arm 11 and the second clamping arm 12. The first clamping arm 11 and the second clamping arm 12 are reset to the first position, and the infusion tube 300 is blocked to achieve liquid stopping. That is, through the setting of the protrusion 221 on the cover body 220, the switch action of the cover body 220 of the infusion pump 200 and the switch operation of the liquid stopping clamp 100 are linked together, and no additional action is required to open and stop the liquid by the liquid stopping clamp 100, which can also prevent the liquid stopping operation from being forgotten, and is safer and more reliable.
[0050] In an embodiment of the utility model, the free ends of the first clamping arm 11 and the second clamping arm 12 have a guide slope 14 on one side of their extension direction, and the guide slope 14 is used to guide the protrusion 221 to be inserted between the first clamping arm 11 and the second clamping arm 12. Through the setting of the guide slope 14, the protrusion 221 can enter between the first clamping arm 11 and the second clamping arm 12 more smoothly, thereby improving the timeliness of the opening operation of the liquid stop clamp 100, avoiding jamming, reducing noise, and improving the user experience.
[0051] In an embodiment of the present invention, in the groove depth direction of the slot, the liquid stop clamp 100 has an installation position in which the connecting ends of the first clamping arm 11 and the second clamping arm 12 abut against the groove bottom of the slot and a deviated position deviating from the installation position; the free ends of the first clamping arm 11 and the second clamping arm 12 extend an extension portion 15 in a direction away from each other, so that when the liquid stop clamp 100 is in the deviated position, when the cover body 220 rotates from the open position toward the cover position, the protrusion 221 abuts against the extension portion 15 of the first clamping arm 11 or the second clamping arm 12 to push the liquid stop clamp 100 from the deviated position to the installation position. In this way, even if the initial installation of the liquid stop clamp 100 is not in place, during the use of the infusion pump 200, the protrusion 221 can abut the extension portion 15 to push the liquid stop clamp 100 to the installation position, which can minimize the errors caused by improper installation operations by the user, making the structure safer and more reliable.
[0052] In an embodiment of the utility model, the infusion pump 200 also includes a position sensor 230, and the position sensor 230 is arranged corresponding to the bottom of the slot to detect the position of the infusion tube 300. In this way, it can avoid the infusion tube 300 from being installed inappropriately, and it can also be judged whether the liquid stop clamp 100 is installed in place by whether the infusion tube 300 is installed in place, making the structure safer.
[0053] In an embodiment of the utility model, the infusion pump 200 further includes a bubble sensor 240, which is arranged corresponding to the limit groove, and is used to detect bubbles in the infusion tube 300. By setting the bubble sensor 240, it is possible to timely detect whether there are abnormal bubbles in the liquid in the infusion tube 300, thereby improving the safety of infusion. Specifically, a push tube structure 222 is further provided on the side of the cover body 220 facing the base 210, and the push tube structure 222 pushes the infusion tube 300 into the groove of the bubble sensor 240. The infusion pump 200 can also ensure that the infusion tube 300 always remains in the groove during use, which is safer.
[0054] In the embodiment of the utility model, when it is used, first slide the infusion tube 300 into the limiting hole of the liquid-stopping clamp 100, make preparations, load the infusion tube 300 and the liquid-stopping clamp 100 on the base 210 of the infusion pump 200, and the liquid-stopping clamp 100 keeps the infusion tube 300 in a liquid-stopping state, close the cover body 220, open the liquid-stopping clamp 100, connect the infusion tube 300, and start infusion. After the infusion is completed, open the cover body 220 and take out the infusion tube 300. At this time, even if the infusion tube 300 is pulled hard, due to the stop of the third protrusion 113 and the fourth protrusion 123 on the liquid-stopping clamp 100, the infusion tube 300 can still be between the first clamping part 111 and the second clamping part 121, and the infusion tube 300 is in a liquid-stopping state, which is very safe.
[0055] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A liquid stop clamp, characterized in that: include: A clamp body, the clamp body comprising a first clamping arm and a second clamping arm arranged opposite to each other, one end of the first clamping arm and the second clamping arm being movably connected so that the other ends of the first clamping arm and the second clamping arm can approach and move away from each other, so as to have a first position where the distance is close and a second position where the distance is far, the first clamping arm comprising a first clamping portion, the second clamping arm comprising a second clamping portion, the first clamping portion and the second clamping portion being used to clamp the infusion tube at the first position and keep the infusion tube blocked, and to clamp the infusion tube at the second position and keep the infusion tube flowing; and, A reset member is connected to the clamp body and is used to provide a clamping force for restoring the first clamping arm and the second clamping arm from the second position to the first position.
2. The liquid stop clamp according to claim 1, characterized in that: A first notch groove and a second notch groove are correspondingly provided on opposite sides of the first clamping arm and the second clamping arm, and a first convex portion and a second convex portion are correspondingly provided on inner walls of the first notch groove and the second notch groove, and the first convex portion and the second convex portion correspondingly form the first clamping portion and the second clamping portion.
3. The liquid stop clamp according to claim 2, characterized in that: The inner walls of the first notch groove and the second notch groove are also correspondingly provided with a third protrusion and a fourth protrusion, the third protrusion is connected to the first protrusion and the protrusion height of the third protrusion is greater than the protrusion height of the first protrusion, the fourth protrusion is connected to the second protrusion and the protrusion height of the fourth protrusion is less than the protrusion height of the second protrusion, and in the direction away from the connecting end of the first clamping arm and the second clamping arm, the third protrusion and the fourth protrusion are used to prevent the infusion tube from falling out from between the first protrusion and the second protrusion.
4. The liquid stop clamp according to claim 2, characterized in that: A third notch groove and a fourth notch groove are correspondingly provided on one side opposite to the first clamping arm and the second clamping arm, and the third notch groove and the fourth notch groove are used to define a limiting hole for the infusion tube to pass through.
5. The liquid stop clamp according to claim 1, characterized in that: The reset member includes an elastic member, and the elastic member includes a main body and two elastic sections extending from two ends of the main body to free ends of the first clamping arm and the second clamping arm respectively; A mounting groove is recessed on one side of the clamp body and is located in the extension direction of the infusion tube. The elastic member is installed in the mounting groove. A limiting portion is convexly provided on the side wall of the mounting groove. The limiting portion is used to prevent the elastic member from escaping from the mounting groove in the extension direction of the infusion tube.
6. An infusion pump assembly, characterized in that: include: The liquid stop clamp according to any one of claims 1 to 5; as well as, An infusion pump comprises a base, wherein the base has a limit groove and a slot, wherein the limit groove is used to fix the infusion tube, and the slot is used to accommodate the liquid stop clamp, wherein the limit groove intersects with the slot, so that when the infusion tube is fixed to the limit groove, it can be clamped by the first clamping arm and the second clamping arm of the liquid stop clamp accommodated in the slot.
7. The infusion pump assembly according to claim 6, characterized in that: The infusion pump further comprises a cover body rotatably connected to the base, wherein the cover body has a covering position covering the base and an open position deviating from the base; A protrusion is provided on the side of the cover body facing the base. When the cover body is in the covering position, the protrusion is inserted between the first clamping arm and the second clamping arm so that the first clamping arm and the second clamping arm are in the second position. When the cover body is in the open position, the protrusion is disengaged from the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are reset to the first position under the action of the reset member.
8. The infusion pump assembly according to claim 7, characterized in that: The free ends of the first clamping arm and the second clamping arm have a guiding slope on one side of the extending direction thereof, and the guiding slope is used to guide the protrusion to be inserted between the first clamping arm and the second clamping arm.
9. The infusion pump assembly according to claim 7, characterized in that: In the groove depth direction of the slot, the liquid stop clamp has an installation position where the connection ends of the first clamping arm and the second clamping arm abut against the groove bottom of the slot and a deviation position that deviates from the installation position; The free ends of the first clamping arm and the second clamping arm extend an extension portion in a direction away from each other, so that when the liquid-stop clamp is in a deviated position and the cover body rotates from the open position toward the cover-set position, the protrusion abuts against the extension portion of the first clamping arm or the second clamping arm to push the liquid-stop clamp to move from the deviated position to the installation position.
10. The infusion pump assembly according to claim 6, characterized in that: The infusion pump further includes a position sensor, which is arranged corresponding to the bottom of the slot and is used to detect the position of the infusion tube; and / or, The infusion pump further comprises a bubble sensor, which is arranged corresponding to the limiting groove and is used for detecting bubbles in the infusion tube.